I tried various methods to get the driver’s side vertical trim to hold in place. The rubber is softer and thinner than the original. Finally thought that since I could not change the gasket, I would have to do something to hold the trim in place. A very simple solution is to fabricate a flat square washer/clip with a hole to accommodate a small machine screw that will fit through a small hole drilled through the gasket similar to that shown in the SM.I started replacing the trim on the passenger side and was able to get the trim to hold in place with the help of some adhesive. This was not possible when I got to the final piece on the driver’s side.

Happy

Thank you for your interest and comments. When I received the car, the safety belts were still in place. The carpets were gone. MY BIG MASTAKE was to think that I would remember how it all went together. The door belts were a no brainer and fastening the reenforcing plates is also not a problem. I have obtained the correct plastic-coated wire and cable ball ends same as original. Sewing the heavy webbing is not a problem. The image of the instruction sheet is most likely just what I would be looking for. I would consider it a miracle if one were still around, but “hope springs eternal”
Happy

PS After looking closely at the lower section of the instruction sheet it shows a bracket on top of the carpet.

Still trying to buckle up a 1955 400
I understand that the modern stile retractable type safety belts is the best way to go, but I would like to preserve what was “factory” at the time. It seems to me that the cable method may have a very early version used to fasten the buckle ends to the floor. Switching to a bracket above the carpet and behind the front seat would require fewer parts and maybe less labor. Eliminating the cable, ends, extra hole, tubular ferrules, labor to sew a loop to hold the ferrules. All replaced by two brackets that were most likely produced with the same tooling used for the door brackets. Also, the square reenforcing plates are slotted. For what purpose except to hold the cable? So, if there are any instructions on how to install a cable system, may factory to dealer? Lacking proper instructions, I would inquire if anyone would have a set of floor brackets they would like to sell, I would be interested.
Happy

Would you maybe still have a copy of the instructions that show how they anchor thru the floor, back of the front seat.
Happy

Photos show belts at back of front seat. Others are of old cable (cut) and over length replacement cable less cable ball ends and heavy under body anchor plates. I am not Shure if a section of the original cable is missing. It has been several years since I removed it. The SP labeled front seat belt buckle ends are restrained by a cable that passes through the rear carpet, next to the drive shaft tunnel. The carpet had been removed before I received the car. Not sure if the cable runs thru the carpet cover that covers the “footrest”, or above it. As always, any comments and phots are deeply appreciated.

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The SP labeled front seat belt buckle ends are restrained by a cable that pass through the rear carpet, next to the drive shaft tunnel. The carpet had been removed before I received the car. Not sure if the cable runs thru the carpet that covers the “footrest”, or above it. As always, any comments, phots are deeply appreciated.
Happy

Yes, they are supposed to be period correct. I would not use recommend their use. I had them on my 55 radiator both upper and lower, and replaced both. They leaked.
Happy

No just the clamp
Happy

Last fall I posted that the idle varied on my 55 400. It turned out that the problem was caused by an improper wire spring clamp on the vacuum feed at the rear of the carburetor. Changing to a modern band and screw type solved the problem.
Happy

The brass fitting at the of the master cylinder has a soft copper crush washer as its seal. Gitting the fitting aligned to allow it to connect to the steel brake lines with enough force to crush the washer and seal the connection is not an easy task and may be the cause of the leak.
Happy